This research have extracted the interviews of seven heterosexual couples from the age of 25 to the age of 35, that have had performed some sexual activities for at least half one year, using the translated SSSD survey and the collected information from the open questionnaires based on some theories to understand the conditions of the revelations of their sexual self-disclosure on various facts and their motivation for revelations between lovers. The interviews are designed that the couple attend the first meeting, then separately in the second and third meeting, and the fourth meeting will be done online through Skype and the researcher will examine the extracted content from the interviewees. The purpose of this research is: (1). Understanding different facets within the revelations of their sexual self-disclosure within couples. (2) The different motivation behind the revelations of the couples’ sexual selves. Additionally, this research also utilizes the exchange theory in the field of social psychology to interpret the subjective experiences of the interviewee on his/her sexual revelations in order to comprehend how revelation-mechanism operates between the sexual self-disclosure within couples. The research result: Even though there’re some differences in the responses of the interviewed couples, however, the consensus is that man comparatively tends to reveal his sexual self-disclosure under the influences of social values, such as sexual responsibilities and the meaning of sex to himself. Some even reveal that they have apprehensions on their girlfriends’ sexual gratifications, and they do care about the sexual emotions and preferences of their girlfriends, that are considered an expression of love from them. Despite the fact women are still under the impact of social values, and woman prefer to play the passive part in the revelation of her sexual self-disclosure, habitually revealing her sexual self-disclosure through body languages during sex, and woman seems to reveal more of her sexual dislikes more directly than man does, expecting to discuss sex through a higher level. That seems to suggest that traditional values have been deeply rooted within the perceptions of men and women, however, men used to be tagged with stereotypes like “their brains are full of nothing but sex” or “men only care about how they feel in sex,” but we discover in this research that all those stereotypes aren’t necessarily true. We even discovered that lots of women insisted that they don’t wish to be materialized during sex and they expect to be respected, but they would more likely ignore the mental feelings and physical needs of men during sex, purposely choosing to concentrate on their own mental feelings, thus women sometimes also use sex as punishments in the relationships. Most couples think the necessity of revealing one’s sexual self-disclosure is something needed to be done only after the collisions of sex, considering the overabundant discussions could possibly turn sex into fixed formulae (such as the discussion on sexual preference). Through comparisons between lots of interviewed couple, we discovered that each couple have their own collisions of sex, but some collisions of sex happen more frequently among couples who bear the sense of crisis and think it is necessary to do some meaningful daily-life revelations of their sexual self-disclosure. The researcher also discovered that in the collisions of sex, man should put focus on “whether the woman feels respected or not,” and woman ought to understand whether “the frequency of sex” is too much or too little for the man on the basis of man’s physical needs.